是否可以调整此功能,使其也适用于本地文件路径?
$meta 包含以下内容: Array ( [wrapper_type] => plainfile [stream_type] => STDIO [mode] => rb [unread_bytes] => 0 [seekable] => 1 [uri] => C:\imgs\232434. jpg [timed_out] => [blocked] => 1 [eof] => )
$meta["wrapper_data"] 不存在。
function isImage($url)
{
$params = array('http' => array(
'method' => 'HEAD'
));
$ctx = stream_context_create($params);
$fp = @fopen($url, 'rb', false, $ctx);
if (!$fp)
return false; // Problem with url
$meta = stream_get_meta_data($fp);
if ($meta === false)
{
fclose($fp);
return false; // Problem reading data from url
}
$wrapper_data = $meta["wrapper_data"];
if(is_array($wrapper_data)){
foreach(array_keys($wrapper_data) as $hh){
if (substr($wrapper_data[$hh], 0, 19) == "Content-Type: image") // strlen("Content-Type: image") == 19
{
fclose($fp);
return true;
}
}
}
fclose($fp);
return false;
}